Valve for cylinder pumps



Nov. 1, 1927. 1,647,144

G. E. PARKS VALVE FOR CYLINDER PUMPS Filed April 8. 1926 INVENTOR ATTORNEYS Patented Nov. 1,1927.

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GEORGE E; rnnKs; or PILLAGER, MINNESOTA, ASSIGNOR or ONE-HALF r JOHN T.

' rnnxsor PILL'AGER, i/rrnivnso'ra. v

,VALVE F o-mums PUMPS. I .T

' '1 1 Application filed April 8,

I This invention relates to certain new and usefulimprovements in valves for cylinder. pumps and has for its primary object to provide a hinged or flap valve associated with a pump cylinder of sh1gle'piece"construction distinguished froni the usual pump cylinder forn'ied'of two sectionsbolted together with the flapv'alve supported. at. theco'nnectiOn"between the two sections in the pump cylind'erfi i l 'A -furtlfier obectt'of the inventionzisfto. provide a valve forcylinde'r pumpswherein a "spring-"ring carrying a'L'flap valve seats into an annular groove formed in the inner wall'of a pump'cylinder to retain the valve and its support in position in the absence of any fastening devices such as bolts, screws or the like.

A still further object of the invention is to provide a valve for cylinder pumps of the flap type wherein said valve embodies a leather or other elastic body seating on an annular flange forming a valve seat and carrying a metallic plate upon its upper side to provide a weight to insure self-closing of the valve.

With the above and other objects in view that will become apparent as'the nature of v the invention is better understood, the same consists of the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawing and claimed.

In the drawing, wherein like reference characters designate corresponding parts throughout the several views, s

Figure 1 is a vertical longitudinal sectional view of a cylinder pump constructed in accordance with the present invention showing the pump cylinder of one piece construction with the improved flap valve operatively positioned therein,

Figure 2 is an enlarged horizontal sectional view taken on line 22 of Fig. 1 showing the spring ring carrying the flap valve with the ring split and having the split ends directed upwardly and inwardly to overlie the swinging side of the valve to limit upward movement thereof, and

Figure 3 is a detail vertical sectional view taken on line 3-3 of Fig. 1.

- The pump cylinder as shown is of onepiece construction andembodies a cylindri 1926. sw m. 100,756.

Cal P n 1 having an enlarged bell bot-.

tom 2 carryingjanannular flange '3 for at tachment 'to"a'well head orthe like andlin' which cylinder 1 the piston' i is reciprocably tionbetween' the cylindrical body portion and the lower bell bottom 2 and"carriesi a spring device for holding the same in'posi-v tion to the EXClUSlOIIOf extraneous fasten-i ng members, sucha's are employed inIc'on-' struction; I p 5 I v p v 'As shown-in'Figs. land 3, the lower end nectioii' with a two-piece pump cylinder conf of the body portion '1 of the cylinder-is pro vided with an annular groove 5 internally thereof and also an annular flange 6 projecting inwardly from the inner face of the cylinder below and adjacent to the groove 5, the flange 6 constituting a valve seat.

The flap valve includes a carrier in the form of a split spring ring 7 having the split ends 8 thereof upwardly and inward ly bent as shown in Figs. 2 and 3 and adapted to be received in the annular groove 5 in the pump cylinder 1. The valve per se includes anelastic body, such as leather 9 carrymg upon its upper face a metallic plate 10 that is secured thereto by rivets 11 or the like, while the connection between the valve body 9 and the carrying ring 10 includes straps 12 having their ends secured to the upper and lower sides of the valve body with the looped portions 12 thereof pivotally supported on the inset portions 13 of the ring 7. v

With the valve supported as illustrated, the spring ring 7 being confined within the annular groove 5, the valve is prevented from bodily shifting movement within the cylinder while operative flap movements thereof are clearly permitted and limited by the inwardly directed ends 8 of the split ring 7. The weight of the metallic Plate 10 upon the upper face of the valve body 9 insures closing movement of the valve while the elastic body 9 of the valve engages the valve seat 6 intimately. The valve and its carrier are readily mounted in position by' binat-ion With a pump cylinder having an internal annular groove, of a flap valve, and a I resilient carrier for said fiap valve removably received in the cylinder groove' 2. Ina valve for cylinder pumps, the combination 'Witha pump cylinder having an internal annular groove, of a flap valve, a resilient carrier for sald flap valve removably received in the cylinder groove, and an inwardly directed annular flange on the pump cylinder constituting a seat for said flap yalver 3. In a valve for cylinder pumps, the combination with a pump cylinder having 7 an internal annular groove, ofa flap valve, are-- s lient carrier for said flap valve removably received in the cylinder groove, an inwardly directed flange on, the pump cylinder constituting a seat for said flap valve, and a inder constituting a'seat for said flap valve,

metallic plate carried by the valve 01 Weighting the same.

4. In a valve for cylinder pumps, the combination With a pump cylinder having an internal annular groove, of a flap valve, a resilient carrier for said flap valve re1novably received in the cylinder groove, an in wardly directed annular flange on the pump cylinder constituting a seat forssaid flap 3 valve, said carrier comprising a split resilient ring andsaid flap valve being pivotally carried by the ring. V r I 5. In a valve for cylinder pumps, the com; bination with a pump cylinder having an in ternal annular groove, of a flap valve, a resilient carrier for said flap valve removably receivedin the cylinder groove, an imvard- 1y directed annular flange on the pump cyl,-'

said carrier comprising a split resilient ring, said flap valve being pivotally carried by the ring, and the endsv of the split ring be ing directed inwardly and overlying the valve to limit opening movement thereof.

In testimony vvhereof I affix my signature.

- GEQBGE EIPAR s; a 

